Venice, FL Business Brokers Giving Back | Sarasota Management Consultant Giving Back Local organizations that Hallmark Business Brokers supports. Sertoma exists for the high and noble purpose of Service to Mankind. Over the years, Sertomans have sponsored thousands of Speech and Hearing clinics for children throughout the world. Their mission is to ensure that Sarasota County-based non-profit organizations can continue to serve special needs children in our community in rent free facilities. Their mission to help adults with developmental disabilities live their lives to the fullest. HRH is the only local or national for purpose organization providing support and encouragement to women on long-term hospital bed rest and premature infants in the NICU.